Title :
Analysis of large cavity field problems using a finite element formulation of the connection scheme
Author :
Loukota, J. ; Castillo, S. ; Millard, J.B. ; Jedlicka, R.
Author_Institution :
Space & Syst. Technol. Group, Motorola Inc., Scottsdale, AZ, USA
Abstract :
The FEM connection scheme is useful for analysing geometrically complex, large cavities. The method results in a reduction in computational complexity and required memory size. This enables the engineer to model moderately large systems on a desktop workstation. Both coupling and scattering problems can be considered using an integral equation method incorporating the cavity admittance matrix for a cavity-backed aperture. We present results for several two- and three-dimensional cavity problems.
Keywords :
computational complexity; electric admittance; electromagnetic field theory; electromagnetic wave scattering; finite element analysis; integral equations; FEM connection scheme; cavity admittance matrix; cavity-backed aperture; computational complexity; connection scheme; coupling; finite element formulation; geometrically complex large cavities; integral equation method; large cavity field problems; required memory size; scattering problems; three-dimensional cavity problems; two-dimensional cavity problems; Admittance; Aerospace electronics; Apertures; Finite element methods; Message-oriented middleware; Microwave antennas; Microwave technology; Space technology; Sparse matrices; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631546
